1.x-5/2x-3=32.x-5/2x-5=1
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1.x-5/2x-3=32.x-5/2x-5=11.x-5/2x-3=32.x-5/2x-5=11.x-5/2x-3=32.x-5/2x-5=11.x-5/2x-3=3两边同乘2x-3x-5=3(2x
1.x-5/2x-3=32.x-5/2x-5=1
1.x-5/2x-3=3
2.x-5/2x-5=1
1.x-5/2x-3=32.x-5/2x-5=1
1.x-5/2x-3=3 两边同乘2x-3
x-5=3(2x-3)=6x-9 6x-x=9-5 x=4/5
2.x-5/2x-5=1 两边同乘2x-5
x-5=2x- 5 x=0
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填九宫格帮帮忙.x x 6 x x 7 x x 98 x x x 3 x 1 x x 9 x x 6 x 5 x 3 x x x 3 x x x x 1 8x x x 9 x 1 x x x2 1 x x x x 6 x x x 6 x 7 x 3 x x 1 x x 9 x 2 x x x 47 x x 8 x x 5 x x
已知x=2π+1.求(X-1)+(X-2)+(X-3)+(X-4)+(X-5)+(X-6)+(X-7)+(X-8)+(X-9)+(X-10)
x+2x+3x+4x+5x+6x+7x+8x+9x=9x-8x-7x-6x-5x-4x-3x-2x-x.x等于多少?
(x-3/x-2)-(x-2/x-1)=(x-5/x4) -(x-4/x-3)
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
x(x-2)-2x(x+1)-3x(x-5) 其中x=负½
x-2x+3x-4x+5x.+99x-100x=25求解
2x+3x+4x+5x+x+6x+7x=100
x(x+1)+(x+2)+(x+3)+(x+4)+(x+5) = 27求x
x+2/x+1-x+4/x+3=x+6/x+5-x+8/x+7 x=?
x^5-2x^3+x=?
写过程x(x-1)+2x(x+1)-3x(2x-5)-x(3x-2)+2x(2-x)=-5x(x-2)-4
1.(1/X-1 )-2=X^-3X/X^-12.(X/X+1)^+5(X/X+1)+6=03.(8(X^+2X)/X^-1)+ 3(X^-1)/X^+2x
x+2/x+1-x+3/x+2-x+4/x+3+x+5/x+4
(x+3x+5x...+2009x)-(2x+4x+6x+...+2010x)
x/x-3-5x/x^2-x-6计算
x^5-x^4+x^3-x^2+x-1